Re: WK2 battery charging
thanks all. I think the issue really is heat as evil twin implies as he recommended not charging a very discharged battery.. AGM of course don't vent often by design but heat and venting could be issue.
I have a Griots charger that is "smart" and can charge up to 20A or 2A at max but then nearly zero or exercise at full charge, so it's pretty safe. I like it so far. I really like the battery type button making it clear it knows what battery you are charging: std, AGM, or gel.
The good news is when I checked volts and charge with it it was clear the battery is fully charged and in good shape despite many short trips and heated everything on most of the time (seat, sw).. Seems like a good charging system and battery.
I totally agree that if it was a dead battery I'd probably pull it out to charge it at 20A for safety.